Toric tool-forming machine.



G. W. CONNER.

TORIG TOOL FORMING MACHINE.

APYLIOATION FILED APILHQ. 1912 Patented Dec. 15, 1914 [[VVENTOR. fllharles W'- (Tanner.

WITNESS 5":

A T TORNE Y.

l F i ur 3 cii ilecciemtiou 01 Letters Patent.

Fuse-chimed Dec 15, Mile:

Applicuiiou filed April 29, will. Ecrlel No. 883,?5539.

, l magzcmmem:

be lmcwn 1, CHARLES W. Somme, of lmliaimpolis, county of liiei'ien, and Stile of Indiana, have invented a certain useful 'loric Tool-Forming Machine; and I do hereby declare that the following is a clear. cud exec; dcecripeion thereof being had to the accompanying L iv-wings. The object of this invention is he provide 2 suitable elmchment for use upo'zi u leehe or; similar machine by means 01 which it would he pcesi olc' to produce work having '3. concave surface cf compound curvature. The invention is particularly udepced for 1 e in optical Work for the manufacture of i in the manuiucture cf Lorie lenses it the practice after the convex side the lens been ground and finished, to

' as into a holder having a muta, "for ilie purpose oi? holding e While the other side of the lens is being ground and polirslied.

.lhe fem-Lure of the invention lies in pivotv mountiu the cutting tool end causing '9 1 llii it lo swivel scout the ceueer us the Work 18 revolved The nature of the invention w ll be untood from the accompanying drawings 5Q l the following description and claims.

in the drawings, Figure 1 is a side elevation a portion if a iuilie with my invenlled filial-ecu, Fig. 2 is ep en. view scale 0' 11 OOFllOH of i seine.

u persp new o the lens cnucl' with. a. lens holder held therein. i=3 u puepective view of e finished p e'? .'.l, there is shown in the di airings 4.9 e luehe having, u :iizuue' or Bed upon which tl'icife is e driven shaft 12 with pull y which ehe power is applied "from the usual "hilt, not shown, There is a ecu i g'e i i sliduhly mounted on the frame 10 v P the usuzil feed rods 15 and ill;

giving tnnsverse movement relative to the frame. A. tool post 16 is also secured to the movable 59 member of the carriage l i in the usual manner. Secured upon thcright-hand end of u Shaft 12 there is a. face plate 17, he chucks 18 are secured by the bolts 19.

i 55 he chucks l8, shown in Fig. 3, have a said carriage longitudinal and cured therein by tightening-die screw 25,-

which draws togediei the ligi portions 26 of the split eleeee-iuid clamps the lens holder in place 'lluioeuch chuck holders are shown coneentrieallymoimted uponl'the face plate 17 with the lens holder 26?: 1:390:11 'tlie inner or central side.

he plate 9;? ie secureduponehe bed 10 and extends transversely of the leihe, and upon this plate a carriage ZS-is meunted and may be given eraueveice mcx'zion of the bed by rueaue oi the well known ecrew feed operutcd by the crank 29. A subssantially Z- shaped frame 30 is secured to the carriage 28 by elie belie 31., 1ind upon the upper lettlumd face of said frame and guided by an upward exteueien 321, el e001 post 38 is pivotnllv mounted. c

The tool post 33 hes! e-sloi; '3 cutthrough it, through which the chunk of the tool 3?: extends and is held in place by means of the see screw 1%. A gear 38 is secured to the underside of the 'eool post 33 and concentric therewith and meshes with o gear 37 ,pivoled on the pin 38 in the upper face of the l bel 30, and there is e boss 3% upon the-upper side of said gear 37, from which a lever 10' errtende, and by moving said lever the tool may he caused to mm or oscillate about its pivot pin ii. A her 42 is secured in the tool poet 16 end exiending longitudinally of the let-he, and will engage the lever 46 alter the carriage M is fed across the had, and thus the oscill-aiiou of the tool may be caused by the carriage cross feed.

The operation 0i my inveneiou is as follows: Lens-holders 2 1, which have been formed 01* blanked into disks upon any desired machine, are secured within the 0pening 23 in the split sleeve 22 of the chucks l8, and they are mounted in their desired relation upon the face plate 17. The tool being properly set, power is applied to the lathe, and the face plate is revolved, and by causing the carriage 14 to travel frcm the from to the rear side of the bed, the tool 35 may be caused to travel from the left-hand to the right-hand dotted-line position shown in Fig. 2, and doing so will l revalumeans for adnew with the ia the 0r file mung :1 face engagement h means (PU-3112 32d 0 machima iimhuling 1;"; said tool, a11- a 200i, :2, gear .Lcr actuating said 001 ansihsr gemr Em warming i001 gar, a item we h tter gem, means rm pm}:

means iii-,0 f0? m taxic- 3003 i1 a 001, gear swung be (when and mi 118d an the Fli ht 0.! nwvement nave h ereunie "the presence 0f the 

